PODCAST: Alibaba IPO

Alibaba, the online commerce giant of China, has filed the paperwork to trade its stock in the United States. Regulators will now comb through more than 2000 pages of Alibaba documents. If the IPO moves forward it could be valued at $100 billion, six times the value of Facebook when it hit the public market two years ago. The BBC's chief business correspondent Linda Yueh joined us to discuss.